Exodus 15:23

Douay-Rheims version of The Bible - 1752 version

And they came into Mara, and they could not drink the waters of Mara, because they were bitter: whereupon he gave a name also agreeable to the place, calling it Mara, that is, bitterness.

Cross References

Ruth 1:20

But she said to them: Call me not Noemi (that is, beautiful), but call me Mara (that is, bitter), for the Almighty hath quite filled me with bitterness.

Numbers 33:8

And departing from Phihahiroth, they passed through the midst of the sea into the wilderness. And having marched three days through the desert of Etham, they camped in Mara.